问题标题:
logx4<2,logx2>-1,logx2<1/3,log3x<0,logx3>1,log1/3x>-1,log1/3x>3,log1/2x<2log3x>3,log3x<-2,log2x<1/2,log2x>1
问题描述:
logx4<2,logx2>-1,logx2<1/3,log3x<0,logx3>1,log1/3x>-1,log1/3x>3,log1/2x<2
log3x>3,log3x<-2,log2x<1/2,log2x>1
邱宗明回答:
1)logx4<2=logxx²,
若x>1,则4x>2;
若001时,则2>1/x,=>x>1/2,=>x>1;
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